Wide Band Gap Transparent Polymer-Inorganic Composite Thin Films by Dip-Coating Method: Preparation and Characterizations

Sathish, S.; Shekar, B. Chandar; Kannan, S.; Sengodan, R.; Dinesh, K. P. B.; Ranjithkumar, R.

doi:10.1080/1023666x.2015.975414

Cited by 20 publications

(5 citation statements)

References 43 publications

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“…The observed trend of transmittance with annealing temperature is in good agreement with early reported work in literature [34]. The increase in transmittance with increase in annealing temperature leads to reduction in the surface diffusion and voids [35]. It clearly indicates that the increase in annealing temperature leads to improvement of surface smoothness and decrease in thickness, grain boundary scattering, rms surface roughness [36].…”

Section: 5supporting

confidence: 80%

Hybrid Pva-In2o3 Nano Thin Film for Transparent Optical Devices

2017

IJAERD

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Section: 5supporting

confidence: 80%

Hybrid Pva-In2o3 Nano Thin Film for Transparent Optical Devices

2017

IJAERD

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“…The theoretical and experimental band-gap values, suggest the potential suitability of this type of compound for optoelectronic applications [55]. It may also be noted that these band gaps are comparable with inorganic materials used in optoelectronic device applications [56][57][58].…”

Section: Frontier Molecular Orbital (Fmo) and Uv-vis Absorptionmentioning

confidence: 96%

Substituted Heterocyclic Chalcones: Electrochemical, Spectroscopic and Theoretical Study

Brovelli¹,

Toledo

Ahumada

et al. 2022

J. Chil. Chem. Soc.

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We have studied the electronic and electrochemical properties of seven substituted heterocyclic chalcones (CHL 1-6) wich are functionalized with 2-thienyl groups. The phenyl ring of the chalcone scaffold has been substituted in orto or para position with electron donnor and acceptor groups (-F, -NO2, -CH3O). The electrochemical features were analyzed by cyclic voltammetry; irreversible processes were observed and attributed to the oxidation and reduction of the 2-thienyl group and the carbonyl group of the chalcone, respectively. DFT calculations were made to gain more in-depth understanding of their electronic properties. Relatively high HOMO level and low LUMO values were calculated, Eg values computed varies between 3.0-3.29 eV. These values enable us to postulate that these type of compounds are suitable building blocks to fabricate optoelectronic devices.

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“…The transmittance reduction is, thus, signi cant for 21-28 µm thin MFC-ATHw lms (from about 86% to about 25-48% at 30 and 50 w/w% of ATH addition, respectively), while its changing in the case of MFC-ATHp lms is much smaller (between 96.8-89.4%) compared to the pure MFC lm, although they are thicker (23-32 µm) and more dependent on the particle size than on their content. The reason for such a difference could be in the different crystalline structure, morphologically larger (40-48 nm), lower SSA (18.9-59.5 m 2 /g), aggregated and less uniform ATHw nanoparticles than ATHp ones (21-31 nm), with much higher SSA (385.4-377.7 m 2 /g), which, consequently, blocks the light transmission (Sathish et al 2015). This can also be supported by increasing the transmittance values by increasing the wavelength for both MFC-ATHw lms (from 47% and 35% at 400 nm to 59% and 49% at 700 nm for MFC lms containing ATH40w and ATH50w, respectively).…”

Section: Surface Morphological and Physico-chemical Properties Of Thementioning

confidence: 99%

Addition of Al(OH)3 vs. AlO(OH) nanoparticles on the optical, thermo-mechanical and heat/oxygen transmission properties of microfibrillated cellulose films

Kolar

Mušič²,

Korošec

et al. 2021

Preprint

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Differently structured aluminum (tri/mono) hydroxide (Al(OH)3 / AlO(OH)) nanoparticles were prepared and used as thermal-management additives to microfibrillated cellulose (MFC), cast-dried in thin-layer films. Both particles increased the thermal stability of the MFC film, yielding 20–23% residue at 600 °C, and up to 57% lowered enthalpy (to 5.5–7.5 kJ/g) at 0.15 wt% of loading, while transforming to Al2O3. However, the film containing 40 nm large Al(OH)3 particles decomposed in a one-step process, and released up to 20 % more energy between 300–400°C as compared to the films prepared from smaller (21 nm) and meta-stable AlO(OH), which decomposed gradually with an exothermic peak shifted to 480 °C. The latter resulted in a highly flexible, optically transparent (95%), and mechanically stronger (5.7 GPa) film with a much lower specific heat capacity (0.31 − 0.28 J/gK compared to 0.68–0.89 J/gK for MFC-Al(OH)3 and 0.87–1.26 for MFC films), which render it as an effective heat-dissipating material to be used in flexible opto-electronics. Low oxygen permeability (2192.8 cm3/m2day) and a hydrophobic surface (>60°) rendered such a film also useful in ecologically-benign and thermosensitive packaging.

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Wide Band Gap Transparent Polymer-Inorganic Composite Thin Films by Dip-Coating Method: Preparation and Characterizations

Cited by 20 publications

References 43 publications

Hybrid Pva-In2o3 Nano Thin Film for Transparent Optical Devices

Hybrid Pva-In2o3 Nano Thin Film for Transparent Optical Devices

Substituted Heterocyclic Chalcones: Electrochemical, Spectroscopic and Theoretical Study

Addition of Al(OH)3 vs. AlO(OH) nanoparticles on the optical, thermo-mechanical and heat/oxygen transmission properties of microfibrillated cellulose films

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